/**
 * Write a program to find the n-th ugly number.
 * Ugly numbers are positive numbers whose prime factors only 
 * include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 
 * is the sequence of the first 10 ugly numbers.
 */
/**
 * @author I321035
 *
 */
package problem264_Ugly_Number_II;